1.   Solve y = 7x + 8 if the domain is {-4, -2, 0, 2}.
    A. {-22, -8, 6, 20} B. {-20, -6, 8, 22}
    C. {-36, -22, -8, 6} D. {-4, -2, 0, 2}
    Hint

  2.   Determine the slope of the line containing the points P(-7, -8) and
Q(3, 0).
    A. B.
    C. -2 D. 2
    Hint

  3.   Use the x-intercept and y-intercept to graph the equation .
    A. B.
    C. D.
    Hint

  4.   What is the solution of the system of equations shown below?
   
    A. (1, -2) B. (0, -3)
    C. (0, 0) D. (3, 0)
    Hint

  5.   Determine whether the relation {(7, 2), (-10, 3), (-5, -1), (7, 3)} is a function. Explain.
    A. Yes, because every relation is a function.
    B. No, because there is an element in the domain that is paired with two elements in the range.
    C. Yes, because each element in the domain is paired with exactly one element in the range.
    D. No, because there are two elements in the domain that are paired with the same element in the range.
    Hint

  6.   Which of the following is (are) true about functions?
    A. Functions are relations. B. In a function, each member of the domain is paired with one and only one member of the range.
    C. Functions pass the vertical line test. D. All of these
    Hint

  7.   Find four solutions for y = 3x – 1 if the x values are 0, 1, 2, 3.
    A. (-1, 0), (2, 1), (5, 2), (8, 3)
    B. (0, -1), (1, 2), (2, 5), (3, 8)
    C. (0, 0), (1, 3), (2, 6), (3, 9)
    D. (0, 1), (1, 4), (2, 7), (3, 10)
    Hint

  8.   Find the x- intercept of 4x – 6y = 24.
    A. 4 B. -6
    C. 6 D. -4
    Hint

  9.   Find the slope of the line.
   
    A. B.
    C. D.
    Hint

  10.   Suppose y varies directly with x and y = -10 when x = 5. Write an equation relating x and y.
    A. y = -2x B.
    C. y = 2x D.
    Hint

  11.   The direct variation equation y = 19.99x gives the total cost y of x DVDs at a store. Find the total cost of 5 DVDs.
    A. $99.80 B. $99.95
    C. $119.94 D. $94.95
    Hint

  12.   State the slope and y- intercept of the graph of
    A. B.
    C. D.
    Hint

  13.   State the y- intercept of the graph of 4x + y = -11.
    A. 11 B.
    C. -11 D.
    Hint

  14.   Write an equation in slope-intercept form of a line with slope 5 and y- intercept –7.
    A. y = 5x + 7 B. x = 5y – 7
    C. x = 5y + 7 D. y = 5x – 7
    Hint

  15.   Write an equation for the line that passes through (-20, -1.5) and (8, 2).
    A. B. y = 8x – 14
    C. D. y = -8x + 18
    Hint

  16.   Write an equation in slope-intercept form for the best-fit line of a scatter plot with points (21, 57) and (30, 12).
    A. y = 5x – 48 B.
    C. y = -5x + 162 D.
    Hint

  17.   A best-fit line has the equation y = 1.75x + 2.25, which models the cost y of renting a taxi for x miles. Predict the cost of renting a taxi for a 12-mile ride.
    A. $23.25 B. $22.65
    C. $23.85 D. $22.05
    Hint

  18.   Solve the system of equations given by y = -2x and y = x + 3.
    A. (1, -2) B. (-1, 2)
    C. (3, 6) D. (-3, -6)
    Hint

  19.   Match the graph shown with the correct inequality.
   
    A. B.
    C. D. y < -4x – 6
    Hint

  20.   Match the graph shown with the correct inequality.
   
    A. B. y > 3x + 6
    C. D.
    Hint



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